bfd/elfxx-riscv.h

   1 /* RISC-V ELF specific backend routines.
   2    Copyright (C) 2011-2020 Free Software Foundation, Inc.
   3
   4    Contributed by Andrew Waterman (andrew@sifive.com).
   5    Based on MIPS target.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; see the file COPYING3. If not,
  21    see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "elf/common.h"
  24 #include "elf/internal.h"
  25 #include "opcode/riscv.h"
  26
  27 extern reloc_howto_type *
  28 riscv_reloc_name_lookup (bfd *, const char *);
  29
  30 extern reloc_howto_type *
  31 riscv_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
  32
  33 extern reloc_howto_type *
  34 riscv_elf_rtype_to_howto (bfd *, unsigned int r_type);
  35
  36 #define RISCV_UNKNOWN_VERSION -1
  37
  38 /* The information of architecture attribute.  */
  39 struct riscv_subset_t
  40 {
  41   const char *name;
  42   int major_version;
  43   int minor_version;
  44   struct riscv_subset_t *next;
  45 };
  46
  47 typedef struct riscv_subset_t riscv_subset_t;
  48
  49 typedef struct
  50 {
  51   riscv_subset_t *head;
  52   riscv_subset_t *tail;
  53 } riscv_subset_list_t;
  54
  55 extern void
  56 riscv_release_subset_list (riscv_subset_list_t *);
  57
  58 extern void
  59 riscv_add_subset (riscv_subset_list_t *,
  60                   const char *,
  61                   int, int);
  62
  63 extern bfd_boolean
  64 riscv_lookup_subset (const riscv_subset_list_t *,
  65                      const char *,
  66                      riscv_subset_t **);
  67
  68 typedef struct
  69 {
  70   riscv_subset_list_t *subset_list;
  71   void (*error_handler) (const char *,
  72                          ...) ATTRIBUTE_PRINTF_1;
  73   unsigned *xlen;
  74   void (*get_default_version) (const char *,
  75                                int *,
  76                                int *);
  77 } riscv_parse_subset_t;
  78
  79 extern bfd_boolean
  80 riscv_parse_subset (riscv_parse_subset_t *,
  81                     const char *);
  82
  83 extern const char *
  84 riscv_supported_std_ext (void);
  85
  86 extern void
  87 riscv_release_subset_list (riscv_subset_list_t *);
  88
  89 extern char *
  90 riscv_arch_str (unsigned, const riscv_subset_list_t *);
  91
  92 extern size_t
  93 riscv_estimate_digit (unsigned);
  94
  95 /* ISA extension name class. E.g. "zbb" corresponds to RV_ISA_CLASS_Z,
  96    "xargs" corresponds to RV_ISA_CLASS_X, etc.  */
  97
  98 typedef enum riscv_isa_ext_class
  99 {
 100   RV_ISA_CLASS_S,
 101   RV_ISA_CLASS_H,
 102   RV_ISA_CLASS_Z,
 103   RV_ISA_CLASS_X,
 104   RV_ISA_CLASS_UNKNOWN
 105 } riscv_isa_ext_class_t;
 106
 107 riscv_isa_ext_class_t
 108 riscv_get_prefix_class (const char *);
 109
 110 extern int
 111 riscv_get_priv_spec_class (const char *, enum riscv_priv_spec_class *);
 112
 113 extern int
 114 riscv_get_priv_spec_class_from_numbers (unsigned int,
 115                                         unsigned int,
 116                                         unsigned int,
 117                                         enum riscv_priv_spec_class *);
 118
 119 extern const char *
 120 riscv_get_priv_spec_name (enum riscv_priv_spec_class);